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Fig 1.

Flow chart of participants.

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Fig 1 Expand

Table 1.

Baseline characteristics (full sample).

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Table 1 Expand

Fig 2.

ITT and per-protocol results: Percentage point effect from any SMS.

Lines represent 95% confidence intervals.

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Fig 2 Expand

Fig 3.

Survival curves for non-return to clinic (ITT sample).

Top panel shows combined treatment groups (any SMS). Bottom panel shows separate treatment groups.

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Fig 3 Expand

Table 2.

Intent-to-treat results.

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Table 2 Expand

Table 3.

Per-protocol results.

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Table 3 Expand